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Use "carriageway" in a sentence
"The huge rumbling dual carriageway is a silent, deep red stained strip of concrete."
"A bridge was built in 1971, and the dual carriageway from the bridge carries you past Barbatre all the way to Noirmoutier-en-l’Île, which is the island’s main town."
"I know I feel pretty safe on the dual-carriageway, which is very similar to a motorway - accept it has 2 lanes of course."